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AssigneeERICO International Corporation
InventorsJulian Albrigo, Edward D. Ricker, Louis J. Colarusso
Estimating the term…
To facilitate the casting of stronger and more precise steel reinforced concrete members and also to facilitate the formation and field joining of such members there is provided a bar splice which includes a generally cylindrical sleeve open at one end to form an axially elongated chamber to receive a steel reinforcing bar telescoped therein, and provided with internal threads at the other end whereby a threaded bar end may be secured to the other end, and when secured sealing the other end of the chamber. The threads are preferably tapered and the chamber includes inwardly extending axially spaced annular ribs. Lateral ports are provided at each end of the chamber. The wall thickness of the chamber adjacent the threaded end of the sleeve may be increased to improve tensile capabilities. The length of the chamber is most of the splice sleeve since the threaded connection occupies little axial space.
A method of forming concrete structures comprising the steps of forming steel reinforced cast concrete structural members by constructing a form for each said member placing in each said form a steel reinforcing rod, said rod terminating in a threaded end near a form wall and having secured to said threaded end a splice sleeve, said splice sleeve including a threaded section at a first end connected to said threaded end of said rod, and a second end of said splice sleeve including an enlarged generally cylindrical chamber having an open mouth adapted to receive another rod end for grout splicing therein, said chamber being axially aligned with said threaded section of said sleeve and said threaded end of said rod whereby when said sleeve is secured to said rod said sleeve and rod end become aligned tensile and compression extensions of each other positioning said rod and sleeve such that said open mouth is in engagement with said form wall whereby said chamber is sealed between said form wall and said threaded section of said sleeve, and then casting concrete in each said form to form said steel reinforced structural members with said mouth of each said chamber being exposed by removal of each said form, and then joining said members by grout splicing to form said structures.
A method of forming steel reinforced cast concrete structures comprising the steps of casting in a form steel reinforced elements with steel reinforcing rod extending therethrough, said steel rod projecting from one end of said steel reinforced elements a short distance and terminating at an opposite end in an axially elongated exposed open mouth sleeve, said sleeve being threaded to said rod so that said sleeve and rod are aligned tensile and compression extensions of each other, whereby said concrete structures are formed by joining adjacent ones of said cast steel reinforced elements with said rod projecting from one end of one element telescoping into said sleeve at said opposite end of an adjacent element, and said telescoping rod and sleeve of adjacent elements being grout spliced together.
Dependencies are inferred from the claim text.